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Coherent diffusive photon gun for generating nonclassical states

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PhysRevApplied.12.064051.pdf (1.137Mb)
Date
12/2019
Author
Thornton, Matthew
Sakovich, Anton
Mikhalychev, Alexander
Ferrer, Jesus Diaz
de la Hoz, Pablo
Korolkova, Natalia
Mogilevtsev, Dmitri
Keywords
QC Physics
TA Engineering (General). Civil engineering (General)
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Abstract
We suggest and discuss a concept of a deterministic integrated source of nonclassical light based on the coherent diffusive photonics, a coherent light flow in a system of dissipatively coupled waveguides. We show how this practical quantum device can be realized with a system of single-mode waveguides laser inscribed in nonlinear glass. We describe a hierarchy of models, from the complete multimode model of the waveguide network to the single mode coupled to a bath, analyze the conditions for validity of the simplest single-mode model and demonstrate feasibility of the generation of bright sub-Poissonian light states merely from a coherent input. Notably, the generation of nonclassical states occurs at the initial stages of the dynamics, and can be accounted for in the linear model that allows us to circumvent the prohibiting computational complexity of the exact full quantum representation.
Citation
Thornton , M , Sakovich , A , Mikhalychev , A , Ferrer , J D , de la Hoz , P , Korolkova , N & Mogilevtsev , D 2019 , ' Coherent diffusive photon gun for generating nonclassical states ' , Physical Review Applied , vol. 12 , no. 6 , 064051 . https://doi.org/10.1103/PhysRevApplied.12.064051
Publication
Physical Review Applied
Status
Peer reviewed
DOI
https://doi.org/10.1103/PhysRevApplied.12.064051
ISSN
2331-7019
Type
Journal article
Rights
Copyright © 2019 American Physical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at https://doi.org/10.1103/PhysRevApplied.12.064051
Description
Funding: EU Flagship on Quantum Technologies, project PhoG (820365). D.M., A.S., and A.M. also acknowledge support from the National Academy of Sciences of Belarus program “Convergence,” and the BRRFI project F18U-006.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/19454

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